
/*
 * (C) 2010 Young, Fey <fey.young@gmail.com>
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package com.youngfey.chess
/**
 *
 * @author Young, Fey
 */
enum Side {
    WHITE('w'), BLACK('b')

    /**
     * @return when w then WHITE, b then BLACK
     * @throws IllegalArgumentException when other value inputed
     */
    static Side getInstance(String notation) {
        switch(notation) {
            case 'w': return WHITE
            case 'b': return BLACK
            default : throw new IllegalArgumentException("Illegal Side: $notation")
        }
    }

    /**
     * @return return the other side
     */
    Side flip() {
        this == WHITE ? BLACK : WHITE
    }

    final String notation

    private Side(notaion) {
        this.notation = notation
    }
}

